[Morphogenesis of the genital system of Passerilepsis crenata (Cestoidea: Hymenolepididae)].

The consecutive development of the genital organs in proglottides of the mature st obile of Passerilepis crenata was studied. The organs of the male and female genital systems, excluding testes and efferent ductules, are laid as a common genital anlage, which later become subdivided into three departments. On the basis of the degree of development of the genital organs zonation of the worm's strobile has been specified.